Full story with the last chapter, missed in this gallery
The original work was removed from the account of the artist on pixiv: https://www.pixiv.net/en/users/28492835

I also posted bounty to translate this.
P.S. I didn't add here some stories with this elf and her owner because they have their own separate plot.
P.P.S. If I correctly understood the post of the author on his fanbox, the site administration forced him to censure images more and remove old less censor images. Maybe I'm mistaken.